System Diagnostics and Programming

Modern vehicles depend on complex computer systems to control performance, safety, and efficiency. At Promisson Automotive Services Center in Bushnell, IL, we use professional-grade tools to identify issues in your vehicle’s control modules and restore proper function. Using advanced Autel technology, our certified technicians analyze both computer codes and manual diagnostics to find and fix the root cause of any issue—not just what the code suggests.

• Advanced diagnostics with Autel equipment
• PCM and ECM programming and reprogramming
• Manual electrical diagnostics for wiring and sensor issues
• Real-time data and performance monitoring
• Reading and clearing OBD-II trouble codes
• Programming new or replacement modules
• OEM-level software integration and calibration
• Diagnostic support for all makes and models